This is a list of the federal buildings in the Washington area that GSA is studying to determine if cooperative uses with the private sector, ranging from commercial and retail space to educational, cultural and recreational uses, can be developed:

Grand Concourse of the Pentagon, Arlington, Va.

Humphrey Building HHS headquarters , 200 Independence Ave. NW.

HEW North Building, 4th and C streets SW.

Federal Office Building No. 6, 4th and C streets SW.

Federal Office Building No. 10-B NASA headquarters , 600 Independence Ave. SW.

Regional General Services Administration Building, 7th and D streets SW.

HUD Headquarters, 7th and D streets SW.

Federal Office Building No. 10-A Federal Aviation Administration headquarters , 800 Independence Ave. SW.

Forrestal Building Energy Department headquarters , 1000 Independence Ave. SW.

Agriculture South Building, 12th Street and Independence Avenue SW.

Main Agriculture Building Agriculture Department headquarters , 13th Street and Independence Avenue SW.

Auditors Building, 14th Street and Independence Avenue SW.

Francis Perkins Building Labor Department headquarters , 200 Constitution Avenue NW.

General Accounting Office headquarters, 441 G St. NW.

Federal Trade Commission headquarters, 6th Street and Constitution Ave. NW.

Justice Department headquarters, 9th Street and Constitution Avenue, NW.

Internal Revenue Service headquarters, 1111 Constitution Ave. NW.

Interstate Commerce Commission headquarters, 12th Street and Constitution Avenue NW.

Departmental Auditorium connecting wing building, 12th Street and Constitution Avenue NW.

U.S. Customs Service headquarters, 1301 Constitution Avenue NW.

Herbert Hoover Building Commerce Department headquarters , 14th Street and Constitution Avenue NW.

Winder Building U.S. Trade Representative headquarters , 600 17th St. NW.

General Services Administration headquarters, 18th and C streets NW.

Interior Department headquarters, 18th and E streets NW.

Office of Personnel Management headquarters, 1900 E Street NW.

State Department headquarters, 2201 C St. NW.

J. Edgar Hoover Building FBI headquarters , 935 Pennsylvania Ave. NW.

New Post Office, 12th Street and Pennsylvania Avenue NW.

New Executive Office Building, 726 Jackson Place NW.

Veterans Administration headquarters, 810 Vermont Ave. NW.

Lafayette Building, 811 Vermont Ave. NW.

Source: General Services Administration